Door framing system

Abstract

A door framing system includes a header including a header jamb, first and second legs each including a leg jamb dimensioned to abut against and extend downwards from a respective end of the header jamb, and, for each leg jamb, at least one adjustable connector for establishing a connection between the leg jamb and the header jamb and permitting selective tightening or loosening of the connection.

1 . A door framing system comprising:
 a header comprising a header jamb;   first and second legs each comprising a leg jamb dimensioned to abut against and extend downwards from a respective end of the header jamb; and   for each leg jamb, at least one adjustable connector for establishing a connection between the leg jamb and the header jamb and permitting selective tightening or loosening of the connection.   
     
     
         2 . The door framing system of  claim 1 , wherein the header further comprises a pair of header casings along the header jamb. 
     
     
         3 . The door framing system of  claim 2 , wherein the first and second legs each further comprise a pair of leg casings along its respective leg jamb. 
     
     
         4 . The door framing system of  claim 1 , wherein each of the adjustable connectors comprises:
 a fastening post having a first portion and a second portion, the first portion fastenable to one of either the header jamb or a leg jamb, the second portion extending away from the first portion;   a fastening cam dimensioned to engage the second portion, the fastening cam being rotatable within the other of either the header jamb and a leg jamb to permit selective pulling or releasing of the second portion thereby to tighten or loosen the connection.   
     
     
         5 . The door framing system of  claim 4 , comprising one adjustable connector for each leg jamb. 
     
     
         6 . The door framing system of  claim 5 , wherein each fastening post is fastened to a respective end of the header jamb, and each fastening cam is rotatably received within a respective leg jamb. 
     
     
         7 . The door framing system of  claim 6 , wherein each leg jamb comprises a cam recess for receiving a respective fastening cam. 
     
     
         8 . The door framing system of  claim 7 , wherein said fastening cam is rotatably mounted in said cam recess. 
     
     
         9 . The door framing system of  claim 8 , wherein each leg jamb comprises a bore extending from an end of the leg jamb to the cam recess, each bore dimensioned to receive a respective second portion of a fastening post terminating at the fastening cam in the cam recess. 
     
     
         10 . The door framing system of  claim 4 , wherein each fastening post comprises a head in its second portion for engaging the fastening cam. 
     
     
         11 . The door framing system of  claim 10 , wherein each fastening cam comprises an arced channel about a portion of its circumference for receiving the head of a respective fastening post. 
     
     
         12 . The door framing system of  claim 10 , wherein the arced channel comprises internal walls which spiral towards the rotation axis of the fastening cam to engage the head and, upon rotation, either progressively pull the header jamb towards the leg jamb thereby to tighten the connection, or progressively release the head thereby to loosen the connection. 
     
     
         13 . The door framing system of  claim 4 , wherein said first portion comprises screw threads for screwing the first portion into one of either the header jamb or a leg jamb. 
     
     
         14 . The door framing system of  claim 13 , wherein the fastening cam comprises a structure configured for engaging by a driving tool to selectively rotate the fastening cam. 
     
     
         15 . The door framing system of  claim 14 , further comprising at least one auxiliary post extending from either the header jamb or a leg jamb, and at least one hole in the other of either the header jamb or the leg jamb for receiving a respective auxiliary post in interference fit. 
     
     
         16 . The door framing system of  claim 1 , further comprising:
 at least two hinge recesses on the first leg jamb; and   at least one each of a striker plate recess and a striker hole on the second leg jamb,   wherein the hinge recesses, striker plate recesses and striker holes accommodate mounting of a hinged door within the door framing system in either of two ways.   
     
     
         17 . The door framing system of  claim 16 , wherein the at least two hinge recesses comprises two hinge recesses on a first side of the first leg jamb, and two hinge recesses on a second side of the first leg jamb, and the at least one each of the striker plate recess and the striker hole comprises a striker plate recess and striker hole on a first side of the second leg jamb and a striker plate recess and striker hole on a second side of the second leg jamb. 
     
     
         18 . The door framing system according to  claim 17 , further comprising a filler for filling in hinge recesses that are not to be used. 
     
     
         19 . The door framing system according to  claim 17 , further comprising a cover for covering a striker plate recess and striker hole that are not to be used 
     
     
         20 . The door framing system according to  claim 3 , wherein the leg casings and the header casings are dimensioned to abut at about a forty-five degree angle.